We all need rules - nature has them and we impose them on our communities in order to function; sometimes fairly and sometimes not- depending on your perspective. But just how important are rules and how do rules in nature affect our function as human beings? And how are our rules being used and interpreted by machines as artificial intelligence and deep learning evolve at enormous speed? Bridget Kendall discusses rules in nature, rules in society and rules in robotics and AI with Sean B. Carroll, professor of molecular biology, genetics, and medical genetics at the University of Wisconsin–Madison, whose new book The Serengeti Rules: The Quest to Discover How Life Works and Why it Matters, explores regulation in the natural world- from every molecule in our bodies to the number of animals and plants in the wild. Dr Nina Power, a philosopher interested in protest who explores when and why we break the rules. And, Dr Jason Millar an engineer and philosopher who explores the ethics of robotics- how we apply human rules to machines and how they might begin to interpret those rules independently. (Photo: The Forum book of rules)